Where do we come from? Are we alone in the Universe? These are two most important questions that Humanity has tried to answer for millennia.
It's not only a matter of scientific curiosity. It's a matter of taking our place in the Cosmos by understanding who we are, both as individuals and species. A matter of transcending our current conflicts, our pettiness, and our limits, to advance forward to a better future together.
And while this may seem like philosophical mumbo jumbo, it's ingrained in each of us. This is why everyone was fascinated when we went to the Moon, landed a rover on Mars, or touched down on a comet. We the people want to know.
This is why we need to go into the oceans of Europa, the place in the solar system most likely to have life.
Make it so!